October 10, 2025

Characterizing Flow Perturbations in Tube Arrays Under Cross-Flow

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Experimental study analyzes flow perturbations in tube arrays, highlighting the effects of cross-flow and fluidelastic instability.

Flow perturbations caused by tube motion decay upstream and downstream, challenging previous theories.
Experimental results showed that time lag increases with reduced flow velocities, indicating localized effects.
Particle Image Velocimetry was utilized to visualize detailed velocity fields and flow structures.
Findings may extend existing theoretical models by incorporating new observations of disturbance mechanisms.

Elhelaly et al. (2025) studied this question.

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